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Amount of commitment made to pay deferred cash remuneration.

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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Number of shares authorized for issuance under share-based payment arrangement.

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Equity Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended		3 Months Ended
	Mar. 12, 2019	Jan. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Additional disclosures
Expense recognized				$ 3,338	$ 11,423
Antero Midstream Partners
Additional disclosures
Expense recognized			$ 500	1,500
Antero Resources
Additional disclosures
Unamortized expense				19,000
Midstream LTIP
Additional disclosures
Unamortized expense				$ 18,000
Weighted average period for recognizing unrecognized stock-based compensation expense				2 years 3 months 18 days
Restricted unit and phantom unit awards
Number of units
Total awarded and unvested at the beginning of the period (in shares)		1,275,990		1,275,990
Granted (in shares)				985,269
Vested (in shares)				(10,120)
Forfeited (in shares)				(21,891)
Total awarded and unvested at the end of the period (in shares)				2,229,248
Weighted average grant date fair value
Total awarded and unvested at the beginning of the period (in dollars per unit)		$ 14.38		$ 14.38
AMP LTIP Awards converted into AMC LTIP Awards (in dollars per unit)				7.23
Granted (in dollars per unit)				8.98
Vested (in dollars per unit)				14.51
Forfeited (in dollars per unit)				$ 11.22
Aggregate intrinsic value
Total awarded and unvested at the beginning of the period		$ 9,685		$ 9,685
Total awarded and unvested at the end of the period				4,681
2017 AMGP LTIP
Additional disclosures
Expense recognized					200
AM LTIP
Additional disclosures
Expense recognized				$ 1,400
Number of stock-based compensation awards authorized	15,398,901
Number of shares available for future grant under the Plan				12,681,835
Cash awards granted		$ 2,200
Vesting period for cash awards		3 years
Cash awards accrued in other liabilities		$ 400
Series B Unit, Vested and Unvested
Additional disclosures
Shares exchange ratio	176.0041
Exchanged B Units
Additional disclosures
Expense recognized					11,000
Shares exchanged	17,353,999
Common stock issued in exchange	98,600
ROIC PSUs
Additional disclosures
Expense recognized				$ 78	$ 0
Unamortized expense				$ 600
Weighted average period for recognizing unrecognized stock-based compensation expense				2 years